The earthquake to one folding plate space truss structure roof lower chord nodal displacement influence
- 10.2991/emeit.2012.95How to use a DOI?
- folded plate grid frame finite element analysis dynamic performance time-procedure analysis
In the ANSYS environment, when the connection between the steel roof and bearing are rigid and hinged, do the modal analysis for this gird roof by using the subspace iteration method, get the former 50 order natural frequencies and mode shapes of this structure, and do time-procedure analysis to understand the seismic performance of the gird roof structure. By doing contrastive analysis of the former 50 order mode shapes, we find that the frequency distribution of the structure is relatively dense, so we not only need to consider the low order modes, and also should consider the impact of the higher modes of the structure during seismic analysis, under eight degree rare earthquake, we use revised EI-Centro earthquake wave to do time-procedure analysis for this structure, the result shows that: in high seismic intensity area the influence of Vertical seismic to the large span structure is relatively obvious, so we can’t neglect the influence of Vertical seismic during the seismic analysis, the kinds of the bearing type has little effect on overall structural dynamic performance of this structure.
- © 2012, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Cui FENG AU - Fu MA PY - 2012/09 DA - 2012/09 TI - The earthquake to one folding plate space truss structure roof lower chord nodal displacement influence BT - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012) PB - Atlantis Press SP - 468 EP - 471 SN - 1951-6851 UR - https://doi.org/10.2991/emeit.2012.95 DO - 10.2991/emeit.2012.95 ID - FENG2012/09 ER -